Seoul National University Thermo Fisher SEM Apreo 2 DVIA-MB1000 Installation Report — 2024.02.26
Contents
Prepared for
서울대학교
Prepared by
Engineer: Jongwon Park, Chaewon Lee
Installation date: 24.02.07
Report written date: 24.02.26
Overview
Relocation installation was conducted from the electron microscopy laboratory of Seoul National University College of Dentistry to the shared-equipment laboratory of the dental science institute.
DVIA-MB1000 was connected to a PC; installation tuning was performed via the UI program and checks were conducted using vibration measurement equipment.
Installation tuning and vibration were measured while the equipment was in an Equipment Turn off state.
System Information
Model: DVIA-MB1000
Serial Number: 200109R2
Engineer
Jongwon Park, Chaewon Lee from DAEIL SYSTEMS
Installation Date
February 07, 2024
Location
서울대학교 치과대학, 서울
Equipment
Thermo Fisher Scientific SEM Apreo 2
Number of Tuning Trial
2회차(이전설치 후 첫 튜닝)
Equipment Condition
Equipment is installed / Turned off
Measurement Device
9.1) Data Physics
Hardware: QUATTRO, Serial Number: 22436
Software: SignalCalc ACE
9.2) Measurement Setting
Bandwidth: 1 - 80Hz
Lines: 800
Window: Hanning
Averaging: FFT Spectrum Averaging
Engineering Units: m/s
9.3) Accelerometer
PCB Accelerometer
Model: 393B05
9.4) Measurement Method
Attach vibration-measurement accelerometers to the top plate and floor.
Measure vibration in the Vertical, Left to Right, and Front to Back directions.
Measurement data were plotted on the VC curve graph.
Conclusion
In the vertical direction, floor vibration attenuates to VC-G across all frequency bands; at 63 Hz, floor vibration attenuates from VC-D to VC-G.
In the Left to Right and Front to Back directions, floor vibration attenuates to VC-G across all frequency bands.
In every direction, DVIA-MB1000 vibration satisfies VC-G.
Summary of Vibration Results
| Measurement Point | Vertical 1-10 Hz | Vertical 12.5-80 Hz | Left to Right 1-10 Hz | Left to Right 12.5-80 Hz | Front to Back 1-10 Hz | Front to Back 12.5-80 Hz |
|---|---|---|---|---|---|---|
| Floor | G | D | G | F | F | F |
| DVIA-MB1000 | G | G | G | G | G | G |
Data and Image
UI Program Transmissibility
Vertical Transmissibility
10 Hz에서 -22 dB(92%) 이상의 지반진동 감쇠 Performance를 보입니다.
Left to Right Transmissibility
10 Hz에서 -23 dB(95%) 이상의 지반진동 감쇠 Performance를 보입니다.
Front to Back Transmissibility
10 Hz에서 -22.5 dB(92%) 이상의 지반진동 감쇠 Performance를 보입니다.
12.2 Vibration Measurement
Vertical VC Curve (rms Velocity, m/s)
63 Hz에서 지반 진동이 VC-E(3.23E-06)가 측정되지만 DVIA-MB1000에서 VC-G(3.59E-07)까지 감쇠합니다.
Left to Right VC Curve (rms Velocity, m/s)
Front to Back VC Curve (rms Velocity, m/s)
설치 사진
Reference
Generic Vibration Criteria
Notes:
- As measured in one-third octave bands over 8-80 Hz (VC-A/B) or 1-80 Hz (VC-C through VC-G).
- Detail size refers to width in microelectronics fabrication or particle size in medical research.
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